package main

import "fmt"

/*符号的使用*/ 

func main()  {
	// + 的使用
	var i int = 1
	var j int = 3
	var s int  = i + j
	fmt.Println("sum s = ", s)

	// 字符串
	var h string = "hello"
	var w string = "world"
	var hw string = h + w
	fmt.Println("hw = ",hw)
}